The Prince William County Service Authority (PWCSA) was created by a resolution of the Prince William Board of County Supervisors on January 11, 1983. PWCSA is chartered by the Virginia State Corporation Commission and is an independent public body responsible for providing and operating a comprehensive drinking water and water reclamation system serving a quarter of a million customers.

An eight-member Board of Directors governs PWCSA and appoints the General Manager, who is responsible for the daily management of the utility.

PWCSA provides customers high quality drinking water drawn from three primary sources: the Occoquan Reservoir, Potomac River and Lake Manassas. Water from the Occoquan Reservoir and Potomac River is treated at Fairfax Water’s Frederick P. Griffith, Jr. and James J. Corbalis, Jr. Water Treatment Plants, respectively. Water from Lake Manassas is treated by the City of Manassas.

Wastewater from PWCSA’s service area is treated at two different facilities in Northern Virginia. The H. L. Mooney Advanced Water Reclamation Facility (AWRF) in Woodbridge treats wastewater from the eastern portion of the County. The Upper Occoquan Service Authority (UOSA) in Centreville treats wastewater from PWCSA accounts located in western Prince William County.

We invite you to learn more about PWCSA in Our History, Our Journey and through the Educational Outreach Programs we offer year-round to customers, schools and the community.